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This works as a framework turning it into a step-transformer. You can tell the difference between them with the number of turns. Whereas, the secondary winding transforms that low current into a higher one. The primary one has a low voltage current and forms the outer coil. Usually, the coils are safe inside a covering.
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The ignition coil got two windings that surround the iron core one is called primary while the other is called secondary. Now that you know that this energy step-up is such a big deal as they are amplifying energy 1000 times, you can coil this little guy as a compact transformer. You would be amazed to know that the spark plugs need around 20K to 40K volts to keep your car moving. Usually, a car battery has a potential of 12V. The coil solely doesn’t perform the grand hassle of transforming the low voltage current into a higher one from the battery. The ignition system is like a circuit consisting of ignition switch, coil, contact points, condenser, spark plugs, cables, and distributors powered up by a lead-acid battery. Ignition coil lies inside the ignition system. How Does Ignition Coil Works? Ignition System If you try to start your engine, but the only thing you are hearing is a spluttering sound, again and again, or your car is low on power while you try to speed up on the highway, then you are most likely experiencing the signs of the bad ignition coil. This lights up the air-fuel mixture in the cylinder producing power. Ignition coil works like a transformer, converting low voltage energy from the car battery into high voltage and providing it to the spark plug. If your car is giving you a hard time, then there might be a problem with its ignition coil.